1971 Renault 15 vs. 2005 Mazda 3
To start off, 2005 Mazda 3 is newer by 34 year(s). Which means there will be less support and parts availability for 1971 Renault 15. In addition, the cost of maintenance, including insurance, on 1971 Renault 15 would be higher. At 1,596 cc (4 cylinders), 2005 Mazda 3 is equipped with a bigger engine. In terms of performance, 2005 Mazda 3 (104 HP @ 5500 RPM) has 15 more horse power than 1971 Renault 15. (89 HP @ 5500 RPM) In normal driving conditions, 2005 Mazda 3 should accelerate faster than 1971 Renault 15. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mazda 3 weights approximately 325 kg more than 1971 Renault 15. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Mazda 3 (146 Nm @ 4000 RPM) has 21 more torque (in Nm) than 1971 Renault 15. (125 Nm @ 3000 RPM). This means 2005 Mazda 3 will have an easier job in driving up hills or pulling heavy equipment than 1971 Renault 15.
Compare all specifications:
| 1971 Renault 15 | 2005 Mazda 3 | |
| Make | Renault | Mazda |
| Model | 15 | 3 |
| Year Released | 1971 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1565 cc | 1596 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 89 HP | 104 HP |
| Engine RPM | 5500 RPM | 5500 RPM |
| Torque | 125 Nm | 146 Nm |
| Torque RPM | 3000 RPM | 4000 RPM |
| Engine Bore Size | 77 mm | 78 mm |
| Engine Stroke Size | 84 mm | 83.6 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 1020 kg | 1345 kg |
| Vehicle Length | 4260 mm | 4430 mm |
| Vehicle Width | 1640 mm | 1760 mm |
| Vehicle Height | 1320 mm | 1470 mm |
| Wheelbase Size | 2440 mm | 2650 mm |
| Fuel Tank Capacity | 38 L | 55 L |
